Portable paving plant



March 23,1926. 1,577,647

' M. MADSEN PORTABLE PAVING PLANT Filed July 7, 1924 5 Sheets-Sheet 1 INVENTOR;

dam o/m 0 13 W\\VW ATTORNEY.

MADSEN PORTABLE PAVING PLANT March 23 INVENTORQ i E 4 v 0 3 March 23,192

M. MADSEN PORTABLE PAVING PLANT Filed July '7, 1924' 5 Sheets-Sheet 3 INVENTOR.

- ATTORNEY.

March 23 1926. v Y M. MADSEN PORTABLE PAVING PLANT Filed July 7, 1924 5 Sheets-Sheet 4 1&

r v INVENTOR.

ll/[Z/ a V I ATTORNEY.

March 23 1926..

M. MADSEN PORTABLE PAVING PLANT Filed July 7, 1924 5 Sheets-Sheet 5 A TTORNEY.

' citizen of .the United States, residing at the .city of Monterey Park, in the county of Los new and in disassembling the plant-when it is tion of t e material elevator Patented Mar. 23, 1926.

IHIAJB'LIIIIN MADSFN, OF .MONTEREY PARK, CALIFQRNIA.

" PORTABLE rn'vme 214111.

2 Application filed Ju y 7,

To all whom it concern Be it known that I, MARTIN -MADSEN, a

Angeles State of California, have invented useful Improvements in Portable Paving Plants, of which the following is ecification; I n the portable paving plants in common use it takes considerable time in assembling necessary to remove the plant from one place to another. It is, the ..opjecti of my present invention to so construct a portable plant that it can be disassembled more quickly for transportation and more quickly assembled in a new place than is possible'with the plants now in common use. To that end I have embodied in a portable paving plant lifting jacks of separable members that enables me to assemble and disassemble the plant in less time than with- "out their use, oneof the members of each jack constitutin a corner post when, the plant is assemb ed for use. 'T-

In the drawings forming a part of this application: igure 1 is an. end elevation of my improved lant assembled for use, with a .porshown diagrammatically;

Fig. 2 is. a side elevation of the parts shown in Fig. 1;

' attachment thereto, the other-parts being omitted;

Fig. '3 is an enlarged'plan of the. top frame showing the jack construction and its Fig. 4 is-an enlarged plain on the line4.4

of Flg. 2 of certaln of the 'partsof the frame, the other, parts being omitted;

Fig. 5 is an end view of a portion of the plant shown in Fig. 1, disassembled and ready fog transportation;

Fig. 6 is a side view of in Fig. 5;

. Fig. 7 is an enlarged detail, partly in the parts" shown l section,'illustrating the jack construction.

In Figs. 1 and 2,-the parts are'positioned go for use. The corner posts 10 form part of thejackiconstruction andare preferably 1- bean s and have bolted to one side of the 1924. Serial as. 724,698.

. web 11' racks 12 (best shown in Fig. 7) which extend from the .top to or near the.

bottom of 10. Posts 10 may be provided on the bottoms thereof with removable foot blocks 13 andat the tops,.when positioned for use, they pass into the jack head casings 14 and are bolted to the side members 15 of the top frame. The. jaclf heads 14 are also bolted to the side members of the topframe. Members 15 are connected by the cross members 16. The bottom. frame is composed of the side members 17 which when the parts are positioned. for use are bolted to postslO, as best shown in Fig. 4.

Members 17 are connected by cross mem:

brs 18. To members 18 are securedthe wheel frame members 19 which at one end preferably project beyond members 18 to provide a suitable mounting for the front truck 20 to enable it to be turned .for guid ing when the plant is being moved. A rear truck 21 is ,secured'to members 19. I Trucks 20 and '21 arepreferably removably mounted-so as to be detached when the plant is in use. At asuitable distance above the bottom frame is a platform composed of flooring boards 22 secured to members 23. Corner posts 2slvand braces 25 are sccured to the lower frame members and to the platform members 23. The platform is at such height above the lower frame that when the upper frame is lowered to .and j rests thereon and.the lower. frame is lowered to be supported by the trucks that the parts carried by the upper frame can pass under the usual highway bridges as the plant is moved. On the'npper frame is mounted the usual .sizingand screening a paratus, indicated b the numeral .26. T e usual bins for holding the sorted material are indicated by the numeral 27 and have the lower portion removably connected to the upper portion.

The usual elevating mechanism for can rying the sand, ,gravel or rock to the sizing app ratus is indicated by the numeral 28 an .is detachablyconnected. to-the sizing apparatus. Only a part of the upper portion' is shown. The weighin r apparatus is indicated by the numeral 29 nd 1s detachably secured to the bins to permit its r eupper frame.- Each jack head com rises the following elements and is shown 1n enlarged detail in Fig. 7 to wit: A casing 14 through which post lO is moved when the frames are to be raised or lowered. Casing 14 has anti-friction rollers 32 secured thereto which bear against web 11 opposite to rack 12. An operating lever 33 is rockably mounted in casing 14 by bolt 34. Swingingly mounted in the inner end of lever 33 is an upper dog 35 and a lower dog 36. In

the nose of dog 35 is a pin 37 ,that isengaged by one end of a spring 38, which ring is coiled around and rockably mounte on bolt 39. The other end of spring 38 'is adapted to be engaged by contact bar 40 when it is desired to move the head upwardly and thereby keep the nose in spring pressed engagement with rack 12. In the atedt0 lower the frames until the lower nose of dog 36 is'a pin 41 that is engaged by one end of s ring 42, which spring is coiled around an rockably mounted on bolt 43. The other end of spring 42 is adapted to be engaged by contact bar 40 when it is desired to move the head upwardly and thereby keep the nose in spring pressed en gagement with rack 12. A pump, not shown, pumps hot asphaltum into hopper 30.

With the parts positioned for use as andthe plant is removed to its future place.

of use, where the frames are 'properly positioned, The corner posts are then positioned and bar 40 is brought into engage ment with springs 38 and 42. Lever 33 is then operated to raise the frames a sufficient height to permit conveyances in which the paving material is to be transported to the street or road to ass under the lower frame. The lower and p atform frames are then se cured to posts 10. The upper frame is then unbolted from the platform frame and lever 33 is then operated to raise the upper frame to its proper position, where it 1s bolted to posts 10. The other parts of the plant are then secured in their working positions and the plant is ready for use again.

It will be observed that when bar 40 is in engagement with springs 38 and 42 the operation of lever 33 will cause the upper frame to move upward onposts 10 until it reaches the top thereof and that when bar 40 is disengaged from said rings the operation of lever 33 will cause t e upper frame to move down on posts 10. Posts 10 form the round member of the jack. While I preer to make thejack a part-of the plant ,as described it is obvious that independent jacks could be used "to raise and lower the frames but it would take more time to osition and operate such independent acks than it does to operate the jacks that are a part of the lant as described. When inder.

pendent jac s are used an suitable form of corner posts may be'u'se providing they are removably connected to the frames.

Having described my invention, I claim: 1. In a portable paving plant, corner osts having rack bars secured thereto;

rames removably secured to said posts and 'slidably mounted thereon, said posts being removable from said frames when the shown in Figs. 1 and 2 and it is desired'to Aframes are lowered to a transportable posi move the plant to another place, the following parts are disconnected and placed upon, a separate conveying vehicle; the elevating mechanism; the weighing mechanism; the bottom portion of the bins; the diagonal braces 45 that run between posts 10; and the a haltum hopper. Contact bar 42 is released rom engagement with springs 38 and 42. The upper frame is unbolted from posts 10. Tie rods .44 are then placed to connect the up er and lower frames. The lower and plat 'orm frames are unbolted from posts 10. Lever 33 is then operframe and its, connected trucks engage and are supported upon and by the ground. The tie rods are then removed and lever 33 is again operatedto lower the upper frame until it rests upon the platform frame to which it is then secured. Posts 10 are then removed and placed upon the separate conveyance. Power is applied to the trucks tion; and means to raise and lower said frames upon said posts.

lifting jack construction; jack heads slid-= ably mounted on said osts, said posts being detachable from the eads when the lant is in a transportable condition; said ead having levers and dogs and being the other part of the jack construction, a top frame and abottom frame, said top frame being connected to said jack heads, said frames being adapted to have secured thereto other members of a paving plant.

3. In a adapted to ave secured thereto means for mixing pavin material; corner posts forming a part 0 lifting jacks on which said frames are mounted, whereby said frames may be raised and lowered, said jacks forming sup orting means when positioned for use, sa1 corner posts being removed from ortable paving plant, frames 1 emon" i when the said posts -d siideble thereon, said posts the other portions of said plant is to be moved from place to place. being detached when the plant is in trens- W 7 4%. In a portable pa ving plant-the combiportable condition. notion of frames adapted to have secured In Witness that elaim the foregoin K thereto means for mixing paving material; have hereunto subscribed my name this 2%th and removable corner posts for supporting; deyofJune 1924i. said frames when the plat is being used,' I said frames being detach it connected to 

